Home / 18,428.68-25,432.64-13,944.66

Finding the Fourth Proportional to 18,428.68, 25,432.64 and 13,944.66

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Solution

The fourth proportional to 18,428.68, 25,432.64 and 13,944.66 is: 19,244.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,428.68 : 25,432.64 = 13,944.66 : x
  2. Step 2: Convert to fraction form
    18,428.68/25,432.64 = 13,944.66/x
  3. Step 3: Cross multiply
    18,428.68x = 25,432.64 × 13,944.66
  4. Step 4: Simplify right side
    18,428.68x = 354,649,517.70
  5. Step 5: Solve for x
    x = 354,649,517.70/18,428.68
  6. Step 6: Final answer
    x = 19,244.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.